Coupling-hook.



w. WETZKE. COUPLING HOOK. A-PPLUATION FILED JUNE 5. 190B.

907, 92'?, Patented Dec. 29, 1908.

WOLDEMA'R wTZkE, or YORK, N. Y.

corLING-H'ook.

Specification of Letters Patent.

Patented Dec. 29, 1908.

Application filed June 5, 1908. Serial No. 436,937.

To all whom it may concern:

Be it known that I, WOLDEMAR WETZKE, a citizen of the Empire of Germany, residing at New York, in the borough of Manhattan, county and State of New York, have invented certain new and useful Improvements in Coupling-Hooks, of which the following is aspecication.

This invention relates to an improved coupling hook which is intended for use with heavy harness, for heavy wagon-chains, for military wagons, artillery harness, and for coupling trolley, horse and other. oars; and for this purpose the invention consists of a coupling hook which comprises a disk-shapedv link applied to a stationary point and provided with a slotted shank, a double U- shaped link fitting on the disk-shaped link and interlocked therewith by a fulcrumed lever that is attached by its slotted shank to a detachable portion of the harness or other device and adapted to engage by its hookshaped end the slot in the disk-shaped link, the ends ofthe double link being provided at their faces adjacent to the eye of the hub of the lever with raised portions for interlocking with corresponding notches on the hub of the lever when the hook-shaped end is placed in interlocking position with-the slotted diskshaped link.

In the accompanying drawings, Figure 1 represents a plan-view of my improved coupling hook, Fig. 2 is a side-elevation of the same, showing the parts of the coupling hook in locked position, Fig. 3 is a side-elevation, showing the parts of the coupling hook in detached or unlocked position, and Figs. 4 and 5 are respectively arvertical transverse section on line 4, 4, Fig. l, and 5, 5, Fig. 3.

Similar letters of reference indicate corresponding parts.

Referring to the drawings,a represents'the non-detachable member of my improved coupling hook, which member is formed of a disk-shaped portion al and a narrow slotted shank a2. The disk-shaped member a is provided with a center-slot as. It is inserted into a double link b, which is made of U- shape and contracted at the ends or shanks, the double link passing over the member a so that the latter is guided between the upper and lower portions of the double link t. The contracted ends of the double link b are connected by a pivot with an eye or hub d1 which is located approximately at the middle portion of a fulcrumed lever d, that is provided at one end with'a hook d2 and at the other end with a slotted shank d3, the latter being adapted to be connected to the movable point of the harness, wagon, car or other object, while the member a is connected to a stationary point of the harness, wagon or car. rlhe ends of the double link b are made in the shape oi eyes b1 so as to permit the pasing a art oi the eyes at the inner ends of the doub'e link so as to hold the hook in unlocked position, but permit the quick locking of the same when the disk-shaped member is introduced into the double link and the coupling lever is brought down so as to engage the slotted center-portion of the disk-shaped member. For opening the coupling hook and disconnecting the disk-sha ed link from the double link, the coupling ever is taken hold oi at theouter end and lifted against the spring-tension of the Shanks oi the double link so as to spring them apart, as shown in Fig. 5, and permit thereby the disconnection oi the hook-.shaped end from the slot of the disk-shaped link. When the parts are to be coupled together, the double link is placed over the disk-shaped link or vice versa and the coupling lever is moved in downward position so that its hook-shaped end engages the slot of the disk-shaped link, while the projections on the eyes of the double link snap into the recesses or notches on the hub of the cou ling lever and interlock therewith so as to ho d the double link rigidly in locked or coupled position with the disk-shaped link or member.

As the parts of the coupling hook, when locked together, are only subjected tostrain in longitudinal direction there is no possible danger of an accidental uncoupling of the parts until the coupling lever is taken hold of at the outer end and released by swinging it on its pivot-connection. The coupling hook forms a quickly operated and very effective connection between the stationary and movable arts of harness, heavy cannons, trolley and horse cars and for other a plications. It can be made on a smaller sca e for ordinary harness and on a larger scale for the coupling together of parts of harness, vehicles, cannons, cars etc.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1.-A coupling hook comprising a diskshaped member having aslotted shank, said disk-shaped member having a center-slot, a double link adapted to be placed over the disk-shaped link and formed of approximately U-shape, and a coupling lever fulcrumed to the ends oi' the double link and provided with an interlocking hook at the inner end and a slotted shank at the outer end.

2. A coupling hook comprising a diskshaped link having a slotted shank, said diskshaped link having a center-slot7 a double link placed over the disk-shaped link and formed of approximately U-shape, a coup ling lever pivoted to the eye-shaped ends of the double link and provided with an interlocking hook at the inner end and a slotted shank at the outer end, and means for interlocking the eye-shaped ends ol' the double link with the eyes or hub ol' the coupling lever.

In testimony, that I claim the foregoing as my invention, I have signed my naine in presence of two subscribing witnesses.

IVOLDEMAR VVETZK IC.

Witnesses PAUL GOEPEL, H. E. RooKWELL. 

